45 € Cheap Flights from Kos to London

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Flight deals from Kos Airport to London

Looking for a cheap last-minute deal or the best return flight from Kos Airport to London? If you want to travel next month, return fares start from 76 €. Find the lowest prices on one-way and return tickets right here.

Find the cheapest month to fly from Kos to London

We’re always keeping an eye on fares, so you can find the best one in seconds. It looks like Kos to London flights are currently cheapest in April.

Direct flights from Kos to London

Kos to London: Flight information

The things to know before you go.
Cheapest flight found19 €
Cheapest month to flyApril
Average flight time4 hrs, 8 mins
Most popular airlineJet2
Average flights per week34

Finding cheap flights from Kos to London: Frequently asked questions

There are 6 airports in London: London City, London Heathrow, London Gatwick, London Luton, London Stansted, and London Southend.
The best price we found for a return flight from Kos to London is 45 €. This is an estimate based on information collected from different airlines and travel providers over the last 4 days and is subject to change and availability.
4 hours and 8 minutes is the average flight time from Kos to London.
Jet2, TUI and BA Euroflyer fly direct from Kos to London.
As of April 2026, there are 34 flights per week flying from Kos to London.
The cheapest month to fly from Kos to London is usually April.
If you're flying from Kos Airport, the cheapest airport near London is London Stansted – which is 48.6 km away from the centre of London. We've found flights into this airport from 45 €.
After crunching the numbers on our flight calendar, we found that it's currently cheapest to fly from Kos Airport to London on Sunday, 19 April 2026.
Yes – the average flight time is 4 hours and 8 minutes.
We show every price from over 1,200 airlines and travel agents, comparing them all so you don’t have to. If you know you want to fly to London but you’re not ready to book, set up a Price Alert. We’ll track prices for you, and let you know when they rise or fall.
We crunched all the numbers in our flight calendar and it looks like the cheapest time to book a flight to London is around 40 days in advance, so don’t leave your flight to the last minute.
In April, the average temperature is usually around 9°C. August is typically the warmest month in London, when it usually averages around 22°C. You can expect the least rain in March. The coldest month is January, with temperatures averaging 1°C. The rainiest month is October.
Currently, Ryanair offers the cheapest flight tickets to London.

Travelling from Kos Airport (KGS) to London: what you need to know

  • Leave enough time to get on your KGS to London flight. As a general rule, turn up at least two hours before international departures and an hour ahead for domestic flights.

  • You can book a direct Kos Airport to London ticket. Begin your trip at KGS and end it at London Gatwick Airport (LGW).

  • Top airlines that offer direct flights from Kos Airport to London include:

  • Consider adding a stopover to potentially find a cheaper plane ticket from KGS to London. All you need to do is deselect 'Direct flights only' during your search. Take a break (and maybe save some cash) by stopping at one of these connecting airports:

    • Amsterdam Airport Schiphol (AMS)

    • Frankfurt Airport (FRA)

    • Eleftherios Venizelos International Airport (ATH)

  • Kos Airport has a strong on-time performance, reducing your chances of a delayed flight. Departures from KGS arrive at their destination as scheduled 89.58% of the time.

How to find the cheapest flights from Kos Airport (KGS) to London

  • The lowest price we've found for a one-way Kos Airport to London flight is 19 €. The cheapest price for a return flight is 45 €. Bear in mind fares can change due to demand at the time of booking.

  • To find cheap flights from KGS to London, book early. Airlines generally offer lower fares when flights are first released.

  • Finding cheap tickets from Kos Airport to London is easier if you're flexible with your trip dates. Try using the 'Whole month' function to access the lowest prices across the month and land an incredible deal.

  • You don't need to check in daily to see if fares have dropped when you set up a Price Alert. We'll notify you as soon as there's an updated deal for cheap flights from KGS to London.

  • Tailor your trip with filters. Choose your arrival and departure times, airlines and total journey duration. You can also sort results by 'Best,' 'Fastest' or 'Cheapest' flights from Kos Airport to London.

Airports in London

London Heathrow Airport (LHR)

  • London Heathrow Airport (LHR) is around 31 kilometres from central London. If you're grabbing a taxi or a ride-share, the drive takes roughly 55 minutes.

  • It'll take around 1 hour when travelling by public transport.

  • Consider booking a hotel near LHR if you have a late flight from Kos Airport to London. Settle into one of these options and avoid the hassle of a long transfer:

  • Grab a London Heathrow Airport rental car and explore London and beyond with your own wheels. Surprice, U-Save and Green Motion are popular providers you can book with here.

  • Lock in the best possible rate by booking your ride from London Heathrow Airport around one week in advance of your flight from KGS to London.

London Gatwick Airport (LGW)

  • London Gatwick Airport (LGW) is roughly 80 kilometres from the centre of London. After your flight from Kos Airport to London, it'll take you around 1 hour 20 minutes to reach the heart of the city in a cab or ride-share.

  • The journey will take about 30 minutes on public transport.

  • There are some great places to drop your things at near LGW. Kick back and get cosy after your KGS to London flight at any of these well-located options:

  • Green Motion, U-Save and Drivalia make picking up a London Gatwick Airport rental car quick and easy. These reliable suppliers are located in or around the terminal and will get you on your way in no time.

  • Score the best price by securing your ride from LGW three weeks ahead of time. You can also expect to have a greater range of vehicles.

Stansted Airport (STN)

  • Step off your flight from Kos Airport to London and head straight for your hotel or start sightseeing right away. Central London is around 64 kilometres from Stansted Airport (STN) and typically takes 1 hour to reach by car.

  • Public transport can take you there in roughly 1 hour 25 minutes.

  • Enjoy a more leisurely start to your trip by checking in to a hotel near STN after your KGS to London flight. Recover from your travel day or just take a moment to find your footing in a new place at:

  • Be in the driver's seat of the next part of your journey by picking up a Stansted Airport rental car. Green Motion, Drivalia and Europcar are dependable companies for booking.

  • If you're searching for a specific type of vehicle, book your ride from STN around four weeks before your flight from Kos Airport to London. This gives you a better shot at getting the car you prefer, as well as a better rate.

Best time to go to London

  • Carefully consider your trip dates before booking your flight from Kos Airport to London. The city comes alive during peak season, but prices are generally higher and attractions can get crowded. Go to London in the off-season if you want a quieter vibe.

  • Before locking in your Kos Airport to London plane ticket, think about the kind of weather you prefer. July is the warmest month in London, with temperatures ranging from 11ºC (52ºF) to 26ºC (79ºF).

  • January sees average temperatures of between 0ºC (32ºF) and 9ºC (48ºF). Look for a cheap ticket from KGS to London around that time if you want to travel in cooler conditions.

More about London

  • Start your London trip off on the right foot by choosing the perfect place to stay. As soon as you've booked your flight from Kos Airport to London, check out our range of hotels including:

  • The British Museum and Big Ben are a couple of top-rated attractions to add to your London must-do list. Keep the adventure rolling by checking out Buckingham Palace.

Explore more of United Kingdom

  • You've seen London, now it's time to explore other parts of United Kingdom. Journey about 161 kilometres north-west to Birmingham to check off its leading sights. From Cadbury World to The Library of Birmingham and National Sea Life Centre, you've got a jam-packed schedule ahead.

  • If you want to check out another great destination in United Kingdom, consider Bristol, roughly 177 kilometres west of London. Clifton Suspension Bridge, Cabot Tower and Brandon Hill Nature Park are key highlights.

Prices shown on this page are estimated lowest prices only. Found in the last 45 days.